Automatic lubricator.



No. 643,303. Patented Feb. I3, I900."

n. s. osmeu.

AUTOMATIC LUBRICATOR.

(Application filed Nov. 20, 1899 (No Model.)

Witnesses. I nventbr.

QQMM

Attorney? THE mmms PETERS cu. vnoraurna, WASHINGTON u c,

Nrrnn STATES ATENT FFICE.

ROOH S. OBRIEN, OF PROVIDENCE, RHODE ISLAND.

AUTOMATIC LU BRICATOR.

SPECIFICATION forming part of Letters Patent No. 643,303, dated February 13, 1900.

Apnlioation filed November 20, 1899. Serial No. 737,613. (No model.)

To ctZZ whom it may concern:

Be it known that I, RooH S. OBRIEN, of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Automatic Lubricators 5 and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to that class of lubricators designed to be operated automatically by the two parts of the oiler coming in contact at certain times in the ordinary running of the machine to be oiled.

The object of my invention is to provide a lubricating apparatus for this purpose that shall avoid the defects of devices heretofore used for oiling crankpins, eccentrics, or cross-heads of engines orof other machinery in which the part to be oiled makes periodic contact with a lubricator. It is fully explained and illustrated in this specification and the accompanying drawings.

Figure 1 represents in elevation those parts of a stationary engine to which my invention is applied. Fig. 2 is an elevation of a part of an engine-arm and pitman with the oiling devices drawn in section. Fig. 3 represents an enlarged view of the two parts of the oiler in vertical section through the axis of each part. Fig. 4: illustrates a modification of a part of the invention.

In the drawings, A represents the shaft of an engine.

B is the pillow-block in. which the shaft A has a bearing.

0 is the crank-arm attached to the end of the shaft A and which has a wrist-pin D fast in its outer end. The pitman or connectionrod H has a box connection on said wrist-pin which it is the object of the invention to oil at each revolution of the crank-arm C.

The upper part of the lubricator is attached to the hood I) or to any of the stationary parts of the engine most convenient by means of an arm or other device to hold the upper part of the lubricator over the line of travel of the Wrist-pin. This upper part of my device consists of an oil-cup d, held in a socket 0, socket attached tothe hood I). A separate oilreceptaole n has a screw-thread made on its upper end to lit into a thread made in the lower end of the socket o, and a check-nut e is put on the screw-thread to hold the receptacle in place when set, this receptacle n consisting of a case 9 to hold oil received through the passage 71. in its upper end from the oil-cup d. It has an opening o made in its bottom, (see Fig. 3,) inside of which opening is held a ball j, of larger diameter than the opening, so that it cannot drop out, but will serve to stop the hole and prevent the oil from coming out except when the ball is raised by the lower part of the oil device attached to the pitman H. This lower part of the lubricator consists of the tube f, having a screwthread made on its lower end that is fitted to screw into the oil-hole made in the top of the pitman H to lead the oil into the bearing on the wrist-pin D. On the upper end of the tubefis a cup g, having arms?" r, projecting in from its sides to hold a ball 70, the upper end of the arms being carried up over the sides of the ball (see Fig. 3) to prevent it from leaving the cup, but are not close enough to prevent it from rotating freely in the arms 7'.

The upper part of the oiler is placed, as before stated, in the path of travel of the crank,

so that the lower ball 712 shall come in contact with the upper ball j as the crank turns and raise it slightly and turn it a little as it passes to allow a little oil to escape from the opening 1; or bring it out on the surface of the ball j as it turns to be taken from it by the ball 7r. and allowed to flow down through the tube f to the wrist-pin D.

The amount of oil delivered to the bearing on the wrist-pin D is governed by the distance that the ball It raises the ball j in passing, and this can be regulated with great exactness by screwing the receptacle '71 up a little farther into the socket c to raise the ball j higher from the ball is, so that it will be raised less in passing, or by unscrewing the receptacle n from the socket and letting the ball j down, so that it will be raised higher by the ball 71; as it passes, which will allow more oil to turn out.

The large area of surface afforded by the ball 76 to receive the oil from the ball j and the quick diffusion of it over that surface obviate all tendency to flirt the oil off by the quick passing of the crank, which is one of the defects of lubricators of this class.

As before stated, the amount of oil delivered can be regulated with great exactness, and the simplicity of its construction removes all liability of getting out of order when in use.

Having thus described my improvements, I claim as my invention and desire to secure by Letters Patent 1. Inanintermittentlubricatingapparatus, the combination of a stationary oil-receptacle having an opening in its bottom, a ball held in said receptacle to close the opening and having a portion of its lower surface exposed outside below said opening, an oil-cup attached to a moving part of the machine, a device held in said cup to raise and turn the ball when said oil-cup is carried past, substantially as described.

2. In a lubricating apparatus of the character described a stationary oil receptacle having an opening in its under side, a ball held in said receptacle to close the opening and having a portion exposed outside under said opening, in combination with an open oil-cup carried by a moving part of the machine, a ball held free to turn in said open cup and having its upper side exposed above said cup, substantially as described.

3. In a lubricating apparatus of the character described, a stationary oil-cup in combination with a separate oil-receptacle ad- 3' ustably attached to the stationary oil-cup by a screw on its upper end and a check-nut to retain said screw when set, a ball held in an opening in said separate oil-receptacle, an oil-cup attached to a moving part of the machine, with devices for raising and turning said ball, in passing, substantially as described.

I11 testimony whereof I have hereunto set my hand this 13th day of November, A. D. 1899.

ROOH S'. OBRIEN.

In presence of- BENJ. ARNOLD, HOWARD E. HARLOW. 

